Oil pump



Aug; '23, 1932.

A. w. F. MANZEL OIL PUMP Filed Feb.

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Patented Aug. 23, 19 32 ADOL'BH. w. E..-IEANZEL,1GYF nnmemmmnw Yenmnsstetnen mo MANZEM macs; ca er Bernar nnwzzokm encnnromvrron or {NEW "MGR-K t This invention relates to improvements-in oil pumps, and whilecertain'iieatimes'there" of relate to multiple -teed pumps, other":Eea tures are adaptabletor use in afs'in'gle teed as well "as" in multiple feed pdmpsgfafid the invention particularly relates 'to' thattype of oil pump in which the oil is passedthrough' a body or column of giycerineBrother-"liquid material of greater specific; gravity than the oil or otherwise possessing the quallti'eslot allowing the oil to rise "therein in globules.

One of the object's-of myinvention is the provision of an oil pump'in'Which'glycerine or a similar liquid substanceis maintained within a sighting device having an oil outlet'pipe connectedthereto, and wherein sa-idwoil outlet pipe is readily detachable from the sighting device without detaching the latter from-(the pump casing, for the purpose of conveniently filling the sightingdevicewith or add ing glycerine or the like to thatiwithin'the sighting device.

Another object is to so construct .an .oil pump of the type referred to, in oil feeding devices are operated by actuating. mechanism within' the oil pumphc asinguso related to the .oil feeding'zdevices. thatthevlat-i ter can be easily withdrawn tromithe pump casing without dismantling. any portion; of the actuating mechanismiuorl displacing suchmechanism.

Another object isto:provide,-.-in an oil-pump. of the kind stated, oil feeding devices; euphz opcratively connected with an nil-sighting) and having both the :oil ateedingflg vices and the-oil sighting-devices supported by awvall of the pump.casingandrnemevahletogether .trom the casing.

Another object of my invention isathe ,pro-i vision of an oil pump having anoilteedin'g, device including a plungen rand. actuating, mechanism: Within .the casing 01% the r puni p; determining theJr'a-nge vof movementet said. plunger and thus predetermin-ingvthe -exact' quantity of oil being fed by saidzoilfeedingi device.

Another object of my inventiona-isithepro--:. vision of a pump inwhich :a-rseries'oi oil-- feeding devices are arranged swhiohiare-zoper+- ate d by act uating unitsoperated mechan ieale" l'-y iii-m'nisonyor capable cit "being individually operated under manual effort; each actuating unit having means to separately regulate the amount o f oil nea by its coacting oil feeding' device.

A further'nbject-ot nary invention is the provisionoi an oil pump having :an' oil-feeding device within its asin-g and having its outlet-connected with a feed passa'geincludi'nga zsi g hting device arranged outside of the oil casing so that anylea'k in said-passage can be readily seen and assurance .had that no portion of the *oil dlivered'by said'oil-teedi'ng device'will:unlrnowinglybe returned to the pump casing."

- A'turthfer object is to provide an oil seal for the plungerot each-oil-te'eding device so that proper and effective action of theplunger is assured 'under all working conditions.

A turther object istoprovide'an oil pump by means of which mechanically 'fedicharges ofoii will be delivered under "pressure to v'ariouwpeints'tdbe ldbricatedand wherein the oil in-its course "of'tiavel'to' such points will be visible".

A further object is to provide a pump in whicha p'luralitytot oil-feeding devices are used,eachz-adaptedtoteed oil under pressure to certain parts of an engine or machine,- and in which p'osi ive' timing oi 'the oil supply in relation to thei'movement of the engine or machine parts is assured.

' stillifiirther objects of myinvention are to improve the construction of oil-fe'edingdevices,and'to improve onthe actuating mecha- Iiism for said "oil-feeding devices. Y

' Withthetabove' and other objects in. viewito appear hereinafter, the invention consists in the "n ovel features ot'coiis'truction and in the arrangement and combination ot'parts to be hereinafter described and more particularly pointedout in the subj oined claims.

In the drawings #Figi 1 is a'dront'elevation of a multiple teed oil-pumpwlnbodyingm-y invention.

'Eiga 91 is an endevi'evi oi the same-showing the actuatingxshattiin'seotion and theoperatin ipitman removed therefrom: w.

iiig; :3 is an enlarged'itransverse section takenion line: -3'-=-3=, Fig. 1.

Fig. 4 is an enlarged longitudinal section through a portion of the length of the pump taken on line 4-4, Fig. 3.

Fig. 5 is an enlarged horizontal section taken on line 55, Fig. 3, the section extending through one plane of said units.

Fig. 6 is a horizontal section through one of the sighting devices taken on line 66, Fig. 3.

Fig. 7 is a horizontal section taken on line 77, Fig. 3, the section extending through one of the actuating units only.

Fig. 8 is a vertical section taken on line 88, Fig. 3.

Fig. 9 is a horizontal sectiontaken on line 99, Fig. 3.

Fig. 10 is an enlarged horizontal section taken on line 1010, Fig. 3, the casing being omitted.

Fig. 11 is a detached perspective view of the oil guide within one of the oil sighting devices.

Fig. 12 is a cross section through one of the rotatable actuators showing the same provided with three contact elements whereby the co-operating oil feeding device is actuated a corresponding number of times during each revolution of the actuator.

Fig. 13 is a similar view showingthe actuator provided with two contact elements.

Fig. 14 is a detached perspective view of one of the rotatable actuators.

Fig. 15 is a detached perspective view' of one of the rock levers forming part of an actuating unit.

Fig. 16 is a detached perspective view of the stop for limiting the plunger of the co-operating oil-feeding device.

Fig. 17 is a transverse section taken through a portion of line 33, Fig. 1, showing a different position of parts of one of the oil-feeding devices and the co-operating actuating unit.

Fig. 18 is a transverse section taken on the same plane as Fig. 3 and showing a modified construction of the connection of the oil outlet pipe to the sighting device, and a modified construction of the oil-feeding device.

Fig. 19 is a diagrammatic View showing the relative positions of the cam rollers as usedwith a four cylinder engine when timing the I oil feed to the exact positions of the pistons.

in the engine cylinders, and in such cases the operating shaft may be square or octagonal.

Fig. 20 is a diagrammatic view showing the relative positions of the cam rollers as used with a six cylinder engine when timing the oil feed to the exact positions of the pistons in the engine cylinders, and in such cases the operating shaft may be hexagonal.

Reference being had to the drawings in detail, the numeral 20 designates the casing of the oil pump in which a supply of oil is contained, and while this casing may be of any desired formation or contour, it is preferably rectangular and constructed of sheet material. In the drawings it is shown as having a bottom 21, side walls 22 and end walls 23, said bottom being secured in an oil-tight manner to said side and end walls. The side and end walls having inturned flanges 24 at their upper ends on which rests a gasket 25, and the upper end of the casing, which is otherwise open, isclosed by a cover 26, which is firmly seated on said gasket and held in place along part of its marginal portions by screws 27 passed through the cover and gasket and threadedinto the inturned flan es 24; also by fastening devices to be hereinafter described, and by means of which other parts of the pump are fastened in place.

The cover, or top wall of the casing, as it may be termed, is provided with a filler tube 28 through which oil is to-be delivered into the casing, which oil is to be fed from the easing in predetermined small quantities by oilfeeding devices, tobe hereinafter described. Oil may, however, be supplied to the casing in any other suitable manner.

Extending longitudinally through the easing or oil chamber, as it may be termed, is an operating shaft 29 which, in the main, is non cylindrical in cross section. The shaft shown in the drawings is hexagonal along the greater portion of its length, and has cylindrical portions 30 at opposite ends which are journaled in bearings 31 secured to opposite end walls. These bearings are suitably packed to prevent leakage of oil along the shaft. Lengthwise movement of the shaft is prevented by reason of the fact that in turning the ends to cylindrical formation, shoulders 32 are formed which bear against the inner ends of the bearings 31.

. Mounted on the non-cylindrical hexagonal portion of the operating shaft is a series of actuators 33, which are spaced at regular intervals alon theshaft and each of which forms part 0 an actuating unit. Each actuator, in preferred form, comprises two disklike members 34 connected together in spaced relation by a spacing pin 35 reduced at opposite ends to provide shoulders against which thedisk-like members 34 bear, the ends of this pin bein upset and serving as a rivet to hold the dis -like members in permanently spaced relation. On this spacing pin is rotatably mounted a contact element or member in the form of a cam-roller 36. By mounting; the actuators on a non-cylindrical shaft, a positive drive is provided without the use of keys or. he ways and this also allows the disk like mem ers carrying the cam-rollers to be positioned so that when the pump is used for lubricating a Diesel or othercexplosive engine, the order of the oil discharges will be in accordance with the firing order in th e. en

gine cylinders.

Arranged parallel with the operating shaft and extending throu h the casing or oil chamber is a fulcrum cured in the end walls of the casing. These ar or' spindle 37, the' ends of which are stepped in bearings 38 se- III bearings are liquid-tight so as to prevent; leakage of oil: at such points.

Spacedon said fulcrum bar or spindley37 isaseriesiofactuating or rock levers 39, one being provided for each actuator 33 and co operating therewith. Each actuating or rock iever comprises two side members 40 which are constructed of sheet material, stamped into the desired shape, and held in spaced relation by'a spacing pin 41 arranged at oneend of-said lever and a spacing member 42 arranged. at the other end thereof. Like the'spacing pins of the actuators, the spacing pin "41 is reduced in diameter at its ends, to form shoulders 43 which abut against the inner sides of the two side members 40, said reduced'ends being upset to maintain said side members in permanently spaced relation. Mounted on the spacing pin 41 of each aotuating'or rock lever 39 is a contact roll-er 44 adapted to actuate an oil-feeding device,

in a 'manner to appear hereinafter.

The spacing member 42 of each actuating or rock lever 39 comprises rectangular spaced parts 45. having prongs 46 at opposite ends, which pass through openings 47 formed in the side members of the actuating or rock lever,

clearly shown in Figs. 3 and 17.

and these prongs are upset to fasten said spacedparts to said side members and maintain said members in permanently spacedrelation.

Narrow separators 48 are placed between the: spaced parts 45 and these also have prongs 49 extending through the openings 4 in the side members, one separator being arranged -'at each side of the actuating or rock lever 39, as clearly shown in Fig. 5.

The openings 47 in the side members of eachactuating or'rock lever are elongated transversely of said side members so that the prongs 49 of the separators and the prongs 46 of the spaced parts 45 forming. the spacing member for said side members, are entered thereinto. The spaced arts 45 of said spacing member have registering openings 50 eX- tending therethrough,

which are screw threaded, and'screwed into said openings is an' adjustable contact member 51 which eX- tends through the spacing member 42 and projects bothabove and beneath the same, as The upper projecting portion of-this adjustable contact member isprovided with an axial socket or depression 52, audit also hasat its upper end an outstanding flange 53 which provides va bearingor contact surface for engagement with a rock arm or tappet 54 mounted on the fulcrum or spindle 37, guards against'undue wear; and assures free and easy movement-for said rock arm or tappet.

The bore of said rock arm or'tappet 54 is provided with a babbitt,'brass, or other lining. 55.

Thewrock arm or tappet 54 extends up wardly from-thefulcrum bar or spindle 37 at an inclination thereto and has an overhang arm or ,tappet during a predetermined por-.

tion ofthe rotary or oscillatory movement of said actuator, as the case, may be; it being understood that said operatingshaft may be given a continuous rotarymotion, or a rocking or oscillatory movement,as maybe desired. Said riding surface 57 extendsfrom a point between the ends of said rock arm ,or tappet to the free outer end thereof and from the inner end of'said riding surface 57 a second riding surface 57 t is provided which is at a greater inclinationthan said firstmentioned riding surface. In fact, the riding surface 57 is a continuation of the riding surface 57. The cam-roller'56 of the actuator rides in contact with both riding surfaces and after passing over theangle formed by said surfaces causes a. change in speed in the movement of the rock, arm or.

tappet and consequently in-the speed of the plunger of the oil-feeding device, to be hereinafter described. WVhen theactuator shown in Fig. 3 is rotated clockwise, the cam-roller 5S of the actuator first engages the inclined riding surface 57 causing the rock-arm or tappet 54 to be depressed at a certain speed and as the cam-roller rides over the angle or-crestformed by the riding surfaces 57 and 57 a and: rides in contact With the riding surface -.57, the movement of. the rock arm or tappet is increased. The under side of said overhanging portion 56 is rounded or made convex for contact with the contact surface.

at the upper end of the adjustable contact member 51. It will therefore be'apparentthat upon rotation or oscillation of the actuator.33, the contact roller 36 thereof will en gage the, inclined riding surfaces 57 and '57 of the rock: arm or tappet and cause the latter to swing-downwardly on the fulcrum bar or spindle 37, with the result that through; the medium of theadjustable contact'anember, which said rock arm or :tappet engages,that end of the actuatingsor rock lever carrying said adjustable contact member is depressed, causing the opposite end. of said lever to rise.

Each actuator 33,.and the rock arm or tape pet and actuating orrock lever associated therewith,- form an actuating unit.

'The adjustable contact member 51. has a stop pin 58 passed-through its lower projecting end, the ends of said pin extending outwardly at diametrically opposite points so that when said cont-act member is-adjusted upwardly inthe spacing member 42 a certain distance, the extending endsof said pin will engage the under side of said spacing. member; thus. preventing accidental disconnection of thecontact member fromthe spacing member.

An oil-feedinggdevice 59 is aPIOYldBdzrfOl 1 said top wall. I

a bodyor casing provided with a vertical bore 6 become inoperative for this reason.

each actuating or rock lever 39, and these oilrfeedlng devices are arranged in a series parallel with the operating shaft 29. Each oilfeeding device is suspended from the under side ofan oil sighting device having an extendedbasetll large enough to cover an opening 62 formed in the top wall of the casing or oil chamber 20 and extending onto Each oil-feeding device has 63 serving as a pump cylinder 01: an oil-- forcing plunger 64slidably disposed therein and extending downwardly beyond the lower end of said body or casing.

The upper end of theboreor cylinder 63 opens into a spring chamber 65 which in reality is a counterbored portion of said bore 7 7 termed the outer extremity of the plunger,

is screw threaded, as at 68. V

' 69 is a spring-retainer cup, the bottom of which is provided with an axial opening through which 'the threaded extremity 68 of theplunger is passed,- and. screwed onto said threaded extremity is a nut 70 which forces the bottom of the cup against the collar 67 of said plunger and retains the same in position on said plunger in a liquid-tight man- The end of the plunger is preferably ,made flush with the nut so as to provide a smooth contact surface forthe contact roller 44 of the actuating-or rock lever co-operating with said oil-feeding device. Surrounding the reduced lower portion ofthe body or cast-. ing of the oil-feeding device and extendng a distance beneaththe same soas to surround .the projecting portion of the plunger is a spiral spring 71,the lower end of which bears against the bottom of said spring retainer cup 69 and the upper end against the shoulder or spring seat 66 formed on the body' or casting of saidloil-feeding device, said spring serving at all timesto keep the plunger in lowered position and the lower end thereof in contact with the contact roller 44:;

lVhen supplying the pump casing withoil, it is filled toga level above the upper open end i of the spring retainer cup, withthe result that the cup will be filled with oil. Owing to the fact that this cup is oil-tight it will remain filled withoil, even though the levelof the oil within the pump casing is lower than thecup, and it is to be noted that the oil in the cup at all times surrounds the lower end. of the body or casing of the oil-feeding device so that, al-

7 though the plunger 64 projects from the lower end of said casing, it cannot draw in air and The body or casting of each oil feeding (le vice has a lateral extension 7 2 provided with a circuitous oil passage 7 8', preferably'of'inverted V-shape, one leg of which has an inlet port 74 serving as an extension of said passageand arranged to open laterally'rnto the bore or cylinder 63 of the oil-feeding device;

This inlet'port-is in a plane beneath the bight 7 5 of said V-jshaped oil passage, and the other legthereo'f has connection with an oil inlet tube 7 6 extending downwardly therefrom to a point nearthe bottom of the casing or oil chamber 20; Thisoil inlet tube has oil inlets 77 at its lower end and is surrounded by a screen 78, or other filtering device, to filter the oil beforeentering said oil inlet tube.

' In preferred form, the inlet leg ofthe V inverted V-shaped oil passage 7 3 is enlarged at its lowerend and internally screw-threaded, and the oil inlet tube 76' is secured into said enlarged screw-threaded end, as at '7 9.

The apex 80 of the wall between the legs of l the inverted V-shape'd oil inlet passage deter mines the height of the level of the oil within the cylinderfiS, provided there isa constant flow of oil upwardly through the oil-inlet tube V 76, and the range of movement ofthe plunger upwardly-beyond the highest'point ofsaid oil inlet port 7% determines the being fed by said plunger.

ing near the upper end of the cylinder and its other end terminating at the bottom of the spring chamber 65. Said outlet portis normally closedby a valve 82; the valve in the preferredconstruction shown in Figs.3 and 17 being cylindrical and entering the upper end of the cylinder 63 from the spring chamber 65, the extent of entrance into the-cylinder.

beingsuflicient to close the outlet port or passage 81. Thisvalve has an annular flange 83 formed thereon which bears against the bottom wall of said spring chamber governs the extent of entranceof the Valve into the cylinder."

A stop 84 is provided to limit the outward or-downward movement ofthe'plunger, this stop being formed of sheet material bent to provide two depending legs '85fand astop member 86 connecting the lower endsof said legs and having an opening 87 therein through 1 which the oil inlet tube 76 is passed. The legs 85 lie at opposite sides of the .lateral extension 72 formed on the body or casting. of 'the oilfeeding device and the stop member 86 is positioned in the path of the spring retainer cup 69, which may in a broad sense be considered as part of the plunger; so'that broadly con- ,4

'sidered, the'plungerlmay be said to engage this stop, which .acts' to limit the extreme downward movement of said plunger, in

which position the plunger is in contact with the contact roller 7 a l'on'the actuating or rock lever. I

quantity of oil An outlet port or passage Ellis provided for the cylinder 63, wh'ichhas one end 'terminat- Each oil sighting device comprises a casting v or casing 88 having a cylindrical portion provided with diametrically opposite sight openings 89'. The extended base 6.1, heretofore referred to, is formed at the lower "end of said castin or casin and: is secured to the top wall atone sideof the cylindrical portion by a screw 90, which is also passed i through the top wall of the casing or oil r an oil-feeding device, and more particularly the top of the spring chani-ber6'5 thereof and it has an annular depending flange :92 entering the upper end of said springchamberv,

said flange surroundinga spring seat or socket 93 in which. the uper' end ofj'a spring 94:

within said spring chamberis seated, the

lower end of: said spring surrounding the upper end of the valve 82 andbearing against the annular flange 83 thereof. In thisman nor the valve 82'is retained in normal position and assurance is had that unless subjected to high pressure from beneath, itwill close the outlet port or passage 81'.

Each oil-feeding deviceis provided with fastener flanges :95-at its upper end and. is fastenod'to the under side of its'co-operating sight feeding device by means of screws96 passed through said fastener'fiangeathrough a gasket 97 interposed between thetwo, and screwed-into the base of the oil sighting device. 4

As there is a passage upwardly throughthe oil'sighting devicewhich-is in direct connection with the spring chamber 65 at the upper end of the oil-feeding device-and said spring chamber serves as a passage for oilupwardly therethrough, leakage ofoil betweenthe oil feeding'device and theoil sighting device'is positively prevented;

The lower portion of the oil sighting device h anannular groove'98' fornie'd'therein, in which is placed an annular gasket '99 and against this gasket is seated the lowerend of a glass sight tube-100. An oil passage 101 extends through the base of the oil sighting device and opens upwardly into the glass sight tube 100,. the upper portion'of said passage being enlarged to provide a valve seat 102. A nozzle 103 isscrewthreaded into the enlarged-upper portion of said oil passage 101 and extends upwardly into the sight tube 100. The lower portionof the passage through this nozzle is enlarged, as'at' 1'O4,to fornidownwardly-facing spring seat against which the upper end ofa spring'105 bears, the lower end of said spring bearing against recheck valve 106, preferably spherical, wh ich is seated against the Valve seat 102 and. closes the. lower portion ofthe; passage 101 from the oilrfeeding device, thus. preventing theglycerine or other liquid mater rialused to fillrthe sightingidevice froindrainl ing into the oi= l-feeding device. J p

The upper endv of the cylindrical casting or casing '88 is internally threaded, and fby reason of the fact that this castingisfprm vided with two diametral sight. openings, it

may be said. to comprise an upper cylindrical portion and a lower cylindrical portion con 'nected, concave-convex oppositely-dis posed members 107 having their edges spaced apartby the sight openings 89. 0

The upper end of theoil sight tube 100 extends into the upper cylindrical portion of the casting or casing8-8 and hasagasket 108 resting against the upper edge thereof, a clamping and retainer nut 109bei'ng threaded into saidrcylindrical upper portion and having :a dependent annular flange. 1-1-O.extending downwardly through the gasket and entering the oil sight tube, saidclampingand retainernut compressingthe gasket and. as suring an oil-tight joint at this point. Said nut, 1.09 alsov serves to force the sight tube tightly againstthe gasket'99- so that an oiltight yointvis provided at the lower-end of thetllbea For convenience in;enter-ing the clamping or, retainer nut into and removing-the-same from the upper cylindrical portion? of the casting or casing'88, said retainer nut, which is providedwithan axial bore forming part ofthe oil passage through thesighting device, isalso provided with: di-ametrical; tool slots or kerfs 111 for engagemen-tiby a-suitabletool; for rotating Said-5111111 A guide wire 1-12' isarrangedcentrally within the sighting; device-and extends down-- wardlyfromthe upper end of the clamping "and retainer nut 1.99 into thenozzle 103. This guide wire has a cross member 113 at its upper end: provided atits extremities with downwardly bent terminals 114 which. rest upon the. upper surface .ofthe clampingand retainer nut, and hold the wire suspended axially within the oil. passage extending through the sight tube and said nut. The lower endsof said guide wire iscrimped withinthe. nozzle as-at 115. The oil forcedabove the check valve 106 accumulates at the crimped lower end ofthe wire and by'capillary attraction is: retainedin contact with the wire while rising through the column ofglycerine or other liquid substance, thus keepingrit. out of, contact with they glass tube, which therefore remains clean'and renders the movements of the oil globules upwardly through thetube visibleat alltimes. o

As already/inferred; the, oil sightingidev-ice is filled: with glycerine' or some other; liquid substance of greater speoificqgravity' than oithe an to be a a that beamedup wardly by the oil's-feeding device will enter:- the oil sighting device and concentrate .withf: in or 'at the exit of the nozzle 103, so as to form. into toil. globules, whichwill rise' upwardly along the guide wire'112 passing through the glycerine or other liquid sub stain'ce witliin the sightingdevice;

The glycerine or other liquidsjubstance' ex fteiids upw rdi mm a connector 116 which serves to connect-the oil si hting device with an'oiloutlet pipehll'f. 5 T is connector 1com 'prise'sf two members 118, 119, 0116 ofwhich is threaded into Itheupper end of the cylin-- drical casting or casing 88,,and the "other to the. oil outlet pipe, by means of a suitable coupling120.v The two members of the'connector are readily disconnectible ,so that ac-- cess may be gained to the oil sighting device for supplying it with any deficiency in glycerine. a q c Memberj118 of the connector is threaded into the upper end ofv the cylindrical casting or casing 88 and has an annular. flange formed thereon between which and the upper edge of said castingor casing agasket 121 isapa plied.

1 end of member 118;

When thismember118 is threaded into position,the flange thereof compresses the gasketand renders the oint at this point liquidtight. The upperend of this member is provided with a concaved' seat 122 on which a gasket 128 is seated, and tliemember 119 has 'a bearing surface which is'rounded or convexed to conform to sald concavedseat and the gasket thereon. Member 119 also has an exterior shoulder against which a sleeve nut 124 is forced which is threaded onto the upper In the passage through member 11 9 a valve seat 125 isprovided, against which a valve 126, preferably spherical in formation, is

seated; this valve being held against its'seatby a spiral spring 127 bearing 'at one end against said valve and at, its other end against 7 a stop nut 128 having an axial opening therethrough; v The passages through the various parts of the oil sighting device, and those through the two parts of the connector may besaid to form a continuous passage, of which part of it serves as a glycerine chamber. In the con- 'struction shown in Fig. 3, the glycerine may so as; to .ldisplacelall the air between he'ir' feeding device and the pointto be lubri-' cated,-th action and operation are as fol lows: 'At eachstrokeof the plunger 64, the oil trappedfbetween the upper end of the plunger-jand-thejcheck valve 106 is forced predetermined quantity of oil to pass 5 the upwardly to junseatsaid valve and assurezi same. V'This" causes the" column of glycerine to beraised for a' momentand act as a pis ton on the oil between it and valve 126,1With the'result that therexactiquantity of oil is o displacedfrom beneath valve 126 and passed valve 106. As the oil globules forming at the base of the glycerine column'rise to the surface of the glycerine and mingle with the oil above it, the 'glycerine column low ers to its normal position. V V

Each of the actuatingior rock levers 39 being fulcrumed between' its ends may be saidto embody two arms 130, 131, extending beyond the same asis forced past the check inopposite direction --from the fulcrum bar 1 0r sp1ndle37 on" which it is mounted,.the arm 130 being the actuated arm or end of the lever, and the arm 131Jthe actuating arm or en'd'of said lever. The actuating lever is adjusted so that whenthe plunger 64, or;

more particularly the spring retainer'cu'p' 69 "ofTth'e plunger is in contactwiththe stop 84, i the contactroller 44 carried by the arm 131 of the lever will be in contact with vthe plunger; 'This positio'n determines the lowermost point of the range of movement of said arm;

also the upper'most point of the range of movement of the arm 130 extending in the opposite direction from the fulcrum bar or spindle37fi fl" 1- Upo'n adjusting. the contact member 51 within the'spacin'g member 42, in "a manner J05 to behereinafter described, the extremity or free end of'th-e'rock'a'rm'or ta pet 54 will 1 be moved upwardly ordownwar ly, with the 7 result that 'it will be engaged by the contact, roller 36 at an earlier or laterpoint in its circular path, and on'account of the for: mation' of said rock'arm, said roller will permit said rock arm ortappet to rise after being depressed to'its full extent. It will therefore be apparent that, upon adjusting saidcontactmember 51 by unthreading the 7 same within the spacing member 42, the rock arm'will be raised and be under forcible action through a greater range of movement,

with the result that the actuating lever 39 will oscillate through a'longer arc'of a circle and cause the'plunger 6401? the oil-feeding' device'to move upwardly to a greater extent, thereby displacing a greater quantity; ofoil confined between the inner or uper end of said plungerand the valve '82. "owering of the-contact member within the spacing member 42 will result inthe feeding of a lesser quantity of oil.

; It is'to be noted. that thespiral-spring 71 surrounding the reduced lower end of the body or casing of the oil-feeding device ex- Generally, an. oil pump of this typeis designed for the purpose of feeding 011 to various' points and each of the series of oil feeding devices has connection with an oil outlet pipe leading to one of said points. Each actuating unit therefore individr. lly

controls 'an oil-feeding device. and as the oil suppliedto one point to be lubricated may require more or less oil than another, and as movement of the actuating or rock lever. of each actuating unit is separately controlled, and the oil-feeding devices and the actuating mechanism comprising a plurality ofunits are confined within the casing or oil chamber 20, provision is made for individually adjusting therange of movement of each actuating or rock lever from the exterior of the casing r chamber. For this purpose there is associated with each actuating unit a vertically lovable and rotatabl arranged rod 132, which is slotted at its lower end, as at 133, and has extending through the slot thereof, a pin 134 which is diametrically disposed in the contact member 51 so as to extend through the axial socket or depression 52 V formed therein.

Fastened into the lower end of said rod 132, which may be termed a combined adjusting and manually actuating rod, and spanning the slot therein is a retainer pin 135, which serves to prevent disengagement of said rod from the pin 134; thus the rod has what may be termed flexible connection at its lower end with the ad ustable contact member 51.

This rodextends through a slot 136 formed in the overhanging portion 56 of the rock arm 54:;

Said overhanging portion may therefore be said to be forked; F or the purpose of guiding the rod 132 in its movement,

abracket'137 is provided within the oil chamber through which the rod is passed.

Mounted for rotary movement withinthe cover 26 of the casing is an adjusting sleeve 138, the projecting end of which is enlarged to form ahead 139 which bears with its lower end against the upper surface of said cover. In order to maintain said head in firm contact with the cover, a dished spring 1 is provided which surrounds the dependingportion of said sleeve and bears with its outer edge against the under side of said cover with its central portion against a collar 1411 held in position on said sleeve by a spring T6- ta-iner 142 entered in an annular groove formed in said sleeve. The combined adjusting and actuatingrod 132 extends upwardly' into the sleeve and it has a pin 143 passed therethroughv with opposite ends projecting diametrically therefrom. The projecting ends of said pin are entered in longitudinal slots 14 formed in the wall of said sleeve at diametrically opposite;

points; said pin and slot arrangementpermitting rotation of said rod upon rotating said sleeve, yet allowing independent movement lengthwise of said rod, which is effected by a push pin 145 slidably arranged within the upper portion of said sleeve and extend ing upwardly beyond the upper end of the head thereof, said push pin having a head 146 providing a surface for convenient engagement by the hand. Said push pin has, a stop shoulder 1 17 formed thereon against which enga es retainer pins 148 arranged in the heador the adjusting sleeve 138, thus limiting the upward movement of said push pin.. Said retainer pins are held in engage ment with said shoulder by springs 149 which retain said pins in contact with said push, pin during the movement of the latte Due to the fact that the rod 132 is rotatable for adjusting the adjustable contact member 51 in its supporting actuating lever, it may, in addition to being termed a combined adjusting and manually actuatingrod, be termed either an adjusting rod or an actuating rod, since upon rotation thereof it will. adjust the range of movement of its co-operating actuating or rock lever, and upon depressing the push pin 145,the latter will engage the upper end of said rod and cause movement of the actuating lever, which in turn will actuate the plunger of the cooperating oilfeeding device without effecting its delivery orsetting, or effecting the delivery or setting of the remaining oil-feeding devices.

For the purpose of rotating the'combined adjusting and actuating rod 132, and through it the adjustable contact member 51, the ad justing sleeve 138 is rotated and the rotary movement thereof imparted to said rod through the pin and slot connection between said rod and sleeve. However, when causing reciprocation of said-rod, actuation of the adjusting sleeve is not necessary, as the push pin 1 is movable lengthwise within said adjusting sleeve.

When at any time it is found that mechanical actuation of the pump fails to supply the necessary or desired quantity of on. to any point and additional oil is desirable at such point, it is simply required to manipulate the co-acting push pin 1 15 of'the feeding device supplying such point, whereupon an additional quantity of oil is delivered tothe point, during the mechanical operation of all the actuating parts, and in this manner the co-acting actuating or rock lever may be manually operated several times during the interval between the mechanical operation thereof.

In order that the adjustable contact mem- 'ber retains its adjusted position, a. spring tion 151 conforming to the curvature of the" 150 is interposed between one of the side members of the rock or actuating lever and the threaded peripheral face'of the adjustable contact 'member, said spring being preferably formed asshown in Fig. 5 where-' in it is illustrated as having'a concaved poradjustable contact member and bearing thereagainst. 7 .1. r V i Oneor'more ofthe actuators 33 of the series may be provided witha plurality of contact rollers 36; for instance as shown in Figs. 12 and 13, Fig. 12 showing three con"- tactrollers embodied in the construction of the actuator, and Fig. 13, two. The numhere the difference ln quantity of oil fed by the oil-feeding devices during each reciprocating movement of their plungers, does not vary'greatly, the variations for the same can be provided for by the adjustment of the adjustable contact members 51. Where,

however, the supply'is doubled ortripled, or

; actuators are given an oscillatory or rocking therefor, all of the actuating units are operotherwise changed in perceptible quantities,

the difference in the quantities will be'supplied by the number of times the actuating lever is operated by its actuator during each revolution thereof, andthis dependson the number of contact rollers provided in the construction of such actuator;

The operating shaft may be rotated by a crank, shown for example at 152, Fig.1, said crank being provided for manual operation; or, it'may be operated mechanically by means of a" pitman 153 secured to said shaft and having a connecting rod 154 pivotally connected to its outer end, also as shown in Fig. 1, or otherwise. Thepitman may be caused to oscillate, in which case'the movement and oil .is fed from the oil-feeding devices on both the clockwise and counter-clockwise movements of the actuators,

or the pitman may be given a continuous circular movement, in which case the actuators will be causedto rotate. Ordinarily, a pump of this kind is mechanicallyoperated, but when the operating shaft is'being rotated, regardless of the means provided ated thereby, with the'result that oil is [fed by the oil-feeding devices through the vari- 7 ous oil outlet pipes. 118, in predetermined quantities. i i r In the preferred construction I have shown the controljvalve 82 for theoil-feed ing device of cylindricalformation and controlling a lateral outlet portorpassage/.81.

In the modification shownv in Fig. 18, the control valve, designated by the numeral 155, is" spherical in formation andactsto'iclose the upper end ofithe bore .or cylinder 63.

Thiscontrol valve 1551s arrangedwithin a;

valve chamber 156 formed by counter-boring the body or casting of the-oil-feeding device at the upper end of the cylinder 63 to provide a shoulder 157., which serves as a valve seatfor said valve, and the, upper end'ofthis counterbore is further enlarged toprovidea second shoulder 158, also-serving. as a valve In thisv modification, the valve preventing admission of glycerine into the oil-,

seat.

feeding device from the sighting device is disposedv within the body or casting of the oil-feeding device at the upper endthereof,

instead of in the oil sighting device, as inthe preferred construct-ion, and for this pur- .pose a' spherical check'valve 159 is seated against the shoulder or valve seat 158, it being so normally maintained by a spiral spring 160 bearing at one: end against said valve and at its otherend against a shoulder" I V 1.61 formed inthe passage leading upwardly through the base. of the oil sighting device.

A spiral spring 162 is disposed between the two valves 155 and 159, bearing ,with opposite ends against said valves. 7 fication, the oil is directed'upwardly into the oil sighting device in a straight line, whereas in the preferred construction, the lateral oil port orpassage 81 serves to direct A.

the oil around the control valve}.83 closing the upper end of the bore'or cylinder.

In said modification I'have also illustrated In this modi:

a connector which will-enable the readydisconnection of the oil outlet pipe 117 from the oil sighting devices sothat any-deficiency in V glycerine or other similar liquid substance 7 being used withinthe oil sighting device may be conveniently supplied. In this particular construction the oil outlet pipe extends hori-' zontally or laterally from the connection, in-' stead of vertically or upwardly therefrom, as in the preferred construction; This modified 163, 164 disposed one above the other with a gasket 165 interposedtherebetween and .fas-.

tened together by a bolt 166 having its shank 167 extending through the upper member and,

screw-threaded into the lower member 164.

'form' of connection comprlses twom'embers I This shank has a longitudinal passage 168 1 opening into the enlarged passage formed in;

said member 164 at the bottom thereof, and a transverse passage 169intersecting said longi{ tudinal passage. The upper member 163 has a lateral extension 170 to which the oil'outlet pipe 117 is connected, and through this lateral extensiona'passage 171 is formed which is in registration with the transverse passage 169 formed in-the sleeve extension of the nut 166. Inthe'passage 171, a valve 172 is arranged. which is controlled by a spring 173 acting i'nama'nn'er similar to the valve and spring shown in the upper member of the connector illustrated in the preferred con- 1 struction. In orderto replenish any deficiencyin the glycerine withinthe' sighting device, it is simply necessary to remove the bolt 166, a-fter which the two members of the connector may be. separated and the glycerine poured into the lower member to the desired i5 level.

The operation ofthe pump, as thus far defined, is as-follows:

Qil i'sgsupplied to the casing or oil chamber2Q through the filler tube 28, or otherwise to a level above the top of the spring-retainer cup 69 so that the latter will be completely filled with oil. The oil thus furnished to the chamberis drawn upwardly through the oil inlet tubes 76 during" the actuation of the pump, this being efiected by an operating part of themachineto which the pump is applied, or byanysepar'ate power medium, for thepurpose or rotating'the operating shaft 29. This shaft causes rotation of the several actuators 33 thereon and through the medium ,or one or more contactv rollers 36 on each actuator, depresses the rock arms or tappets 54. The downward movement of these rock i arms or'tappets cause the actuating or rock levers 39 t'o'be operated through the medium of the adjustable contact members 51 carried thereby that end of each actuating lever having the adjustable contact member moving downwardly, while the opposite end having the contact roller 44, moves upwardly. By reason-of the connection of the combined adjusting and actuating rods 132 to the adjustable contact me1nbers'51, said rods are caused to move downwardly with the actuating levers, such movements being permitted by the pins 143 at the upper end of the rods traveling in the slots 144 formed in the adjusting sleeves 138, without in any manner effecting said sleeves.

The movement of the actuating or rock levers 39, by reason of the contact rollers 44 thereof being in engagement with the plungers 64 of the several oil devices, causes said plungers to move upwardly, and as the projecting ends of these plungers are oilsealed within the spring-retainer cups, admission 'of air to the cylinders is impossible and effective operation of the oil-feeding devicesis assured at all times. The oil with in the bores or cylinders 63 of the oil-feed ing devices, between the plungers and the valves 82 in said bores'or cylinders, is acted upon by the plungers, and as the upper ends of the-.plungers are normally beneath the highest points of the respective oil inlet ports outlet port or passage 81, at the same time forcing a quantity of oil, predetermined by the range of the effective stroke of the plunger, outwardly through said port or passage, around the control valve, through the spring acting against said valve and the chamber in which said spring is located, and into the oil sighting device; the pressure exerted being sufficient to lift the check valve 106 and allow the oil to travel upwards ly to the bottom of the glycerine column and rise in globules through the body of glycerine contained within the oil sighting device. The glycerine is held against flowing into the oil feeding device by the check valve 106 in each oil sighting device, or its equivalent in the modified construction shown in Fig. 18. The oil passing upwardly through the nozzle is broken up by the crimped lower end of the guide wire 112 extending through the sight tube 100 and is formed into globules rising upwardly through the body of glycerine so that the exact quantity being delivered with each actuation of an oil-feedingidevice can be easily seen. This oil accumulates on top of the body of glycerine in the oil sighting device and fills any space that may exist be tween the level of the glycerine and the valve the oil-feeding device will cause delivery, at

the point to be'oiled, of exactly that quantity forced from the cylinder 63 during each upward stroke of the plunger 54.

The downward movement of the plunger 64 of each oil-feeding device and the movable parts comprising the actuating unit co-operating therewith and the combined adjusting and manually actuating-rod 132 connected to the adjustable contact member 51 of said unit, are returned to normal position by the spiral spring 71 surrounding the lower reduced portion of the oil-feeding device.

In Fig. 1 I have shown five o1l sighting devices and consequently the casing or oil chamber 20 contains five actuating units, with each of which there is associated a combined adjusting and manually actuating rod 132. If, for example, it is found that the oil fed to the point to be lubricated by the parts associated with the central oil sighting tube in Fig. 1, is insufficient for proper lubrication,

the push pin 145 associated with the combined adjusting and actuating rod 132 connected to thisv will cause additionalzquantities of oil to rise upwardly through the centraloil sighting device, in addition to that passing there:

through during the mechanical operation of tepartsqassociated therewith Should it be .found', upon examination oflthe sight tubes, that a slight increase olioil would be desirable at any po-int,it would be simply necessary torotate. the associated adjusting sleeve 139, .wherleupon the combined ,adj ustlngland actuating rod- 132 associated therewith would be rotated and cause the adjustable contact member 51 of the co-acting actuating or rock lever to'be elevated within the. spacing member 42 of said-lever, with theresult that both the-associated rock armor tappet and actuat-.

ing orrock lever Would be compelled to travel through asomewhat longer range of move: 7

menu and this would increaselthe efl'ective stroke of the plunger associated therewith and deliverian increased quantity of il' the feeding, device; v t I By applying thefoil sl h ng'atviasdi-. 1 V rectly above the oil-feeding devices the trans- I verse dimensionof the pump is considerably reduced while the slight additional heightis of no consequence owing to the fact that V pumps of this type are invariably mounted vertically, and as the projecting ends of the oil-forcing plungers are at all timesoil-sub-V merged, even though thelevelvo'f the oil in the "feeding devices, all advantages possessed by l,

' Y herein supplemented by the additional advan pump casingis considerably belowgtheoilthe types of pumps having the oil sighting devices at the: side of the casing are retained tages herein set out.

1 In some cases, especiallyfivhen applying pumpsto Dieselfengines, theexacttime of deliveryofoilftothe point 'to'be lubricated isof decided advantage, iFo-r example, it is highly desirable, in engines. of theDiesel type to deliver oil in proper, quantities to the en- .gine pistons, and particularly "when the pistons are at certain points in their range of movement. a As shown in the diagrammatic views, Figs. 19 and 20, each of the engine cylinders, designatedby the numeral'174, has an oil hole'175 opening to the interiorthereofat a certain point between itsjends' overzwhich the piston 176 within the cylinderpasses, so as t'ocoverfand uncover the same,and-the oil outlet pipes 117 lead'tothese oilholes. Itis desirable that thefeeding of oil-be timed so that upon delivery, thejpistons will be at the end of the working stroke, and by proper delivery, the efiiciency of the venginewill be greatly increased and cost oflubric ation reduced. When timing the oil supply to'the stroke of the'pistons, the pump is, of course,

l a isk 1. In rm; oil pump, the combination a eateries the actuators 34L are. positioned rotativeliy on the operating shaft- 29- to harmonize; with the 5' Having, thus d'escribedmy invention;

- arrangement ofthe engine pistons"; this pump cylinder having a lateralextension pro Y vided with an inverted V-shaped oil-passage, the lowerendof one leg of which is connected I With-the interior of said cylinder by wlilttfml V 0ilinlet,said cylinder having 8; literfllfl e paced th rn aid n et; sp n tained valve fitting into the upper end offsaid cylinder andhaving itsilower end injgplane' beneath that o fthe apex of saidiinverted V 1 shaped. oil passage, said valve normally clo's- ,ing; said oil outlet, 1 plunger extendinginto said cylinder from the; lowerend thereof and V 7 having its upper end f s'eparated' from said-' valve by an intervening oilspaoe ndrinallyin r communication with saidloil inlet, andineanf for imparting movement to said plunger,

cause said valve tovopen'said oil' outlet through the force supplied, bysaid p'lungendntheintervening body of oilla nd to iorce" a. prede-t mined q a itytf said oil out'ofsaid out:

- 2". g In an? cylinder a lateral extension provided witha circuitous andioutlet, saidleylinder having anoil outlet in la plan'eabove'thatof its'oil inlet, avalva' normally closing saidioil outlet andmovable through a predetermined portion ofits range of movement" before opening said outlet, 5 a

plungerwithin said cylinder separated: from said valve by a space into which said oil inlet opens and which isffilled'with oil, the highefi point of said space being in a, plane beneath e the highest point of said oil passage, said plunger being adapted to open. saidtvalve through theinterposedbodyofoil within said space, and' means for'imparting movement to said plunger.

3. Anoil' pump' having 8 cylinder provided with a plunger bore an a spring 7 chamber at one end thereof co-axial with said bore, said plungerv bore having an oil nletand an oil outlet spaced fromsaid oil inlet along the length of said bore, an oil passage connecting said oil outlet with said I spring chamber, a plunger reciprOcable-witb' insaid bore and having itsinnerlend nor- 1 V mally positioned to uncover said oil inlet, a

valve in said plunger bore closing said oil vided with anannular flange normally bean utlet and having a portion extending into said spring'cha-mber, said valve being pro-- her, a closure applied to the upper end of said pump cylinder and having an outlet passage therein, and a spring surrounding a portion of said valve and hearing at one end against said closure and at its other end against the annular flange of said valve.

4. Inan oil pump, the combination with an oil-containing casing having a top wall closing the same, of a plurality of oil-feeding devices within said casing, actuating mechanism also within said casing for actuating said oil-feeding devices including a vertically-movable rotatably-adjustable rod for each of said oil-feeding devices, a sleeve co-acting with each of said rods and rotatably mounted in said top wall, each sleeve having the upper end of one of said rods extending thereinto and being provided with co-acting guide means to permit independent vertical movement of said rod but to prevent independent rotary movement thereof, said sleeve being provided with a collar spaced from the under side of said top wall, a dished spring resting upon said collar and exerting pressure against the under side of said top wall to retain said sleeve in position within said top wall, and a manually-operable plunger rod within said sleeve adapted to engage the upper end of said rod and cause in dependent operation of the individual oilfeeding device co-operating with said rod.

5. In an oil pump, the combination with an oil-containing casing, of an oil-feeding device within said casing, a rotatable shaft arranged within said casing and operated from the exterior thereof, an actuator on said shaft comprising two spaced disks and a contact device connecting said disks off-center, and means interposed between said actuator and said oil-feeding device en aged by the contact device of said actuator and adapted to cause actuation of said oil-feeding device.

6. In an oil pump, the combination with an oil-containing casing, of an oil-feeding device within said casing, a rotatable shaft arranged within said casing and operated from the exterior thereof, an actuator on said shaft comprising two spaced disks, a pin connecting said disks off-center and retaining the same in spaced relation and a contact roller rotatable on said pin, and means interposed between said actuator and said oilfeeding device engaged by said contact roller and adapted to cause actuation of said oilfeeding device.

7. In an oil pump, the combination with an oil-containing casing, of an oil-feeding de vice within said casing, a rotatable shaft ar ranged within said casing and operated from the exterior thereof, an actuator on said shaft'comprising two spaced disks, pins connecting said disks off-center and holding said disks in spaced relation and a contact roller rotatable on each of said pins, and means interposed between said actuator and said oilfeeding device engaged by said contact rollers. and adapted to cause actuation of said oil-feeding device a plurality of times during each revolution of said actuator. 8. In an oil pump, the combination with a spaced, disks, pins connecting said disks at P regulator intervals around said pins between said disks, and means interposed between said actuator and said oil-feeding device engaged by said contact rollers and adapted to cause actuation of said oilfeeding device.

9. In an oil pump,.an oil-containingcas ing, an oil-feeding device within said casing, a non-circular shaft arranged within said casing and operated from the exterior. thereof, an actuator on saidshaft comprising two spaced disks having non-circular openings conforming to the shape of said shaft and be ing forced onto and retained in spaced relation on said shaft, a pin connecting said disks off-center and assisting in maintaining the same in spaced relation, a contact roller rotatable on said, pin, and means interposed between-said actuator and said oil-feeding device engaged bysaid contact roller and adaptedto cause actuation of said oil-feeding device.

10. An oil pump, comprising an oil-containing casing, an oil-feeding device within said casing including a plunger, a shaft rotatable within said casing and operated from the exterior thereof, a non-rotatable shaft parallel with said rotatable-shaft and spaced therefrom, arock lever mounted between its ends on said non-rotatable shaft to provide opposite projecting arms, an actuator on said.

rotatable shaft and adapted to impart force to one of said arms for rocking said lever, and a contact roller applied to the other of said arms and engagingthe plunger of said oil-feeding device for actuating the same.

11. An oil pump, comprisin an oil-containing casing, an oil-feeding evice, within said: casing, a rotatable actuator, a non-rotatable shaft, a rock arm mounted on said shaft and adapted to be engaged by said actuator, a rock lever also mounted on said shaft and actuated by said rock arm, said rock lever engaging said oil-feeding device to actuate the same and having an adjustable contact member in engagement with said rock arm.

12. An oil pump, comprising an oil-containingca'sing, an oil-feeding device within said casing including a plunger, a rock lever mounted between its ends for rocking movement and comprising two side members spaced apart, a spacing element connecting said side members together at one end of said rock lever and provided with a screw threaded opening, the other ends of said rock lever '40 feeding'of like or varying quantitiesj'of oil a co-operating oil-feeding device to feedthe being in contact withsaid'plung'er, a cont-act member adjustably-threaded into the thread- 7 ed opening of said spacing element and hav- 2 ing a socket at its upper end, a pin extending dianietrically through said socket, a vertical-' ly movable rod having a forked end through the slot of which'isaid pin is passed, a p'inex-r I tending through theforked end of'said rod i underneathan'd'at right angles to said firstfTl'Qd. from saiid'soc-ket, a rock arm having its axis coincident withthe axis of said rock lever andhaving its free end forked to straddle said rod, said rock armbeingprovided upper, end. of said contact, member at oppo: site sidesjof said rod, a rota-table actuator adapted tofengage said rock arm for actuat- 7 ing partly outside of said casingand adapted V to engage the upper end of said rod for. actu h e I ating the sameand'the rock leverindepen'dent V 0f said'rockarm; 1 taining casing, "anoil-feeding device Within said casing including a'cylindei' and a piston s 5 plunger projecting from the lower end of said cylinder, a cup seouredto the lower end and l 1aving its upper'edge at all times'i'n planesabove the lower end ofsaid cylinder, said cup containing a sealing fluid, and means for operating said plunger.

taining casing',fa plurality of oil -feedin de} vices, an actuating-unit for each of sai oil: feeding devices, means for adjusting the movement ofsaid actuating units tojcause by said 'o'il-feedingf device's, mechanical 1 means for actuation ofrs'aid actuating units,

and means' for manually andji'ndividnally opv I I eratingany-of said actuating units and cause v 'maximum charge of oil regardless of the adjustment of said actuating unit. V n

In testimony whereof I aflix my signature;

I 'ADOLPH W. MANZEL 

